Phoenix Contact 2900380 A PLC-Interface for railway applications comprises a basic terminal block with push-in connections and an integrated miniature solid-state relay. The device measures 0.7 x UN to 1.25 x UN in size and operates within a temperature range of -25°C to +70°C. It features one N/O contact, accepts input power from 110 V DC, and produces output voltages between 3-33 V DC, capable of handling up to 3 A current.